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MCP & tools

MCP TypeScript SDK

modelcontextprotocol/typescript-sdk

The official MCP TypeScript SDK supports MCP clients and servers in Node and TypeScript environments. It provides protocol types and transports for exposing application capabilities to compatible agents.

THE PRACTICAL EXPLANATION

What this repository is

The official MCP TypeScript SDK supports MCP clients and servers in Node and TypeScript environments. It provides protocol types and transports for exposing application capabilities to compatible agents.

WHERE TO USE IT

The work it fits

Use it for web-platform integrations, Node services and TypeScript applications that need to publish or consume MCP tools and resources.

WHO MAY USE IT

The people it suits

TypeScript backend and full-stack teams that can maintain API contracts, authentication and operational monitoring.

HOW TO USE IT

A sensible adoption path

Follow documentation for the installed major version; MCP examples can age quickly. Implement a single constrained tool, reject invalid or unauthorised requests on the server, and test it from the actual client that will call it.

  1. 01Confirm the current major version and migration guidance.
  2. 02Create one schema-defined read tool.
  3. 03Enforce identity and permissions server-side.
  4. 04Exercise errors and reconnects from the target client.

GETTING THE BEST RESULTS

Use the repository with discipline

  • Pin compatible SDK versions.
  • Keep tool descriptions accurate and unambiguous.
  • Do not rely on the model to police access.

WHY IT MAY BE USEFUL

The shortest useful assessment

Official TypeScript SDK for MCP clients and servers.

Best considered for: Building MCP services in Node and TypeScript.

READ BEFORE YOU ADOPT IT

The practical caution

Follow the current major-version documentation; examples can age quickly.

Confirm the current licence, maintenance status, dependency risk, data path, model access, tool permissions and human approval points at the source. A public repository is inspectable raw material—not proof that a system is secure, supported or suitable for your production environment.